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onsemi BC848CWT1
- Part No.:
- BC848CWT1
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- -
- Datasheet:
-
BC848CWT1.pdf
- Description:
- TRANSISTOR NPN 30V 100MA SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:66,000
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Product details
Overview
BC848CWT1 from onsemi is an NPN silicon general-purpose transistor in SC-70 (SOT-323) package, rated for 30 V VCEO, 100 mA IC, and 200 mW power dissipation, with DC current gain hFE of 420–800 at IC = 2.0 mA, used in low-power amplification and switching circuits in consumer and industrial electronics.
For engineers reviewing the BC848CWT1 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal limits, pin configuration, real-world use cases, and validated alternative parts - all specific to BC848CWT1, not the broader BC846/847/848 family.
Technical Context
This transistor operates as a discrete NPN bipolar junction device optimized for linear amplification and digital switching. Its hFE range (420–800), low VCE(sat) (≤0.6 V at IC = 10 mA), and fT = 100 MHz support stable small-signal gain and fast switching in compact surface-mount designs.
Designed for FR-5 PCB mounting at TA = 25 °C, it features RJA = 620 °C/W and operates across −55 °C to +150 °C junction temperature. The SC-70 package enables high-density placement while maintaining thermal performance within its 200 mW PD limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 30 V - Maximum collector-emitter voltage before breakdown; defines safe operating voltage headroom in low-voltage switching stages. |
| IC | 100 mA - Continuous collector current rating; sets upper bound for load-driving capability in signal-level applications. |
| hFE | 420–800 - DC current gain at IC = 2.0 mA, VCE = 5.0 V; enables precise biasing and predictable amplification in analog front-ends. |
| VCE(sat) | ≤0.6 V - Collector-emitter saturation voltage at IC = 10 mA, IB = 0.5 mA; ensures low conduction loss in saturated-switch mode. |
| fT | 100 MHz - Current-gain bandwidth product at IC = 10 mA, VCE = 5.0 V; supports audio-frequency amplification and moderate-speed digital switching. |
| PD | 200 mW - Total device dissipation on FR-5 board at 25 °C ambient; determines thermal derating requirements in enclosed or high-density layouts. |
| Cobo | 4.5 pF - Output capacitance at VCB = 10 V, f = 1.0 MHz; impacts high-frequency response and stability in RF-coupled or fast-switching circuits. |
Pinout & Package
BC848CWT1 uses the SC-70 (SOT-323) surface-mount package (Case 419, Style 3), measuring 2.2 mm × 2.2 mm × 0.95 mm, with gull-wing leads optimized for automated assembly and thermal reliability on FR-5 boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal for forward-biased junction; requires current-limited drive to achieve specified hFE and switching speed. |
| 2 | Emitter | Current sink node in common-emitter configuration; connected to ground or low-impedance return path for stable biasing. |
| 3 | Collector | Output current source node; interfaces with load resistor, pull-up network, or next-stage input with defined VCEO margin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability under temperature cycling, humidity, and mechanical stress - suitable for non-safety-critical vehicle modules. |
| Pb-Free, Halogen Free/BFR Free | Complies with RoHS Directive 2011/65/EU and JEDEC JS709C - eliminates hazardous substances without compromising solderability or thermal performance. |
| Low VBE(on) | 580–770 mV at IC = 2.0–10 mA ensures predictable turn-on behavior across temperature and reduces base drive power in battery-powered systems. |
| High hFE consistency | 420–800 range at IC = 2.0 mA enables tighter gain tolerance in production without individual trimming or feedback compensation. |
| Low noise figure | 10 dB at IC = 0.2 mA, f = 1 kHz supports clean signal amplification in sensor interface and audio preamp stages. |
Applications
| Signal Amplification | Level Shifting |
|---|---|
|
Use Scenario: Amplifying weak analog signals from temperature sensors or microphones in portable instrumentation. IC Role / Device Role / Timing Role: NPN amplifier in common-emitter configuration providing voltage gain and impedance transformation. Use Value: High hFE (420–800) and low NF (10 dB) preserve signal integrity while minimizing external component count. |
Use Scenario: Translating logic levels between 3.3 V microcontrollers and 5 V peripheral ICs in embedded control systems. IC Role / Device Role / Timing Role: Digital switch configured as emitter-follower or common-emitter inverter to shift voltage thresholds. Use Value: Low VCE(sat) (≤0.6 V) and fast fT (100 MHz) ensure minimal propagation delay and rail-to-rail output swing. |
| LED Driver | Power Supply Enable Switch |
|
Use Scenario: Driving indicator LEDs in smart home hubs and industrial HMI panels requiring low-current, high-reliability switching. IC Role / Device Role / Timing Role: Saturated NPN switch controlling LED anode/cathode current path with fixed base resistor biasing. Use Value: 100 mA IC rating and 200 mW PD allow direct drive of up to 3 standard LEDs in parallel without heatsinking. |
Use Scenario: Enabling/disabling auxiliary power rails in multi-voltage FPGA or SoC power management subsystems. IC Role / Device Role / Timing Role: Low-side enable switch placed between ground and regulator enable pin or MOSFET gate driver. Use Value: AEC-Q101 qualification and −55 °C to +150 °C TJ range ensure robust operation in thermally demanding power supply environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847CWT1G | VCEO = 45 V (vs. 30 V), same hFE range (420–800), identical SC-70 package and pinout. | Higher voltage margin suits 24 V industrial I/O modules where BC848CWT1 may approach VCEO limit. | Select BC847CWT1G when system supply exceeds 20 V or transient overvoltage risk exists. |
| MMBT3904LT1G | VCEO = 40 V, hFE = 100–300 (lower gain spread), same SC-70 package but different marking and traceability. | Broader industry adoption and longer supply history; preferred for cost-sensitive consumer designs with relaxed gain tolerance. | Choose MMBT3904LT1G for legacy compatibility, higher-volume procurement, or where hFE > 300 is not required. |
Compared with BC848CWT1, BC847CWT1G offers higher voltage headroom without sacrificing gain or footprint, while MMBT3904LT1G trades gain consistency for wider availability and lower unit cost - both require no PCB changes but differ in thermal derating and gain-dependent circuit stability.
Availability
BC848CWT1 is available at Aetrix Electronics and suitable for signal amplification, level shifting, LED driving, and power supply enable switching requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for BC848CWT1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
BC848CWT1 belongs to the BC846/847/848 family of general-purpose NPN transistors designed for low-power surface-mount amplification and switching in space-constrained, thermally managed PCBs.
FAQ
What is the maximum collector-emitter voltage rating for BC848CWT1?
The BC848CWT1 has a maximum collector-emitter voltage (VCEO) rating of 30 V, as specified in the Absolute Maximum Ratings table of the official onsemi datasheet (Rev. 13, November 2024). This value is measured at IC = 10 mA and defines the upper limit for safe DC operation without breakdown. Exceeding this voltage risks permanent device damage.
Does BC848CWT1 meet automotive reliability standards?
Yes, BC848CWT1 is AEC-Q101 qualified and PPAP capable, as confirmed in the Features section of the onsemi datasheet. It undergoes rigorous stress testing including temperature cycling, humidity, and mechanical shock - making it suitable for non-safety-critical automotive applications such as body control modules and infotainment interfaces.
What is the DC current gain (hFE) range for BC848CWT1 at typical operating conditions?
The BC848CWT1 exhibits a DC current gain (hFE) range of 420 to 800 when tested at IC = 2.0 mA and VCE = 5.0 V, per the Electrical Characteristics table. This high and tightly binned gain supports stable biasing in amplifier circuits and reduces sensitivity to process variation in mass production.
Which package type does BC848CWT1 use, and what are its key mechanical dimensions?
BC848CWT1 uses the SC-70 (SOT-323) package (Case 419, Style 3), with nominal dimensions of 2.2 mm × 2.2 mm × 0.95 mm and gull-wing leads. Its mechanical outline is documented in the "MECHANICAL CASE OUTLINE" section of the onsemi datasheet, and it is optimized for reflow soldering on FR-5 PCBs.
Is BC848CWT1 RoHS compliant and lead-free?
Yes, BC848CWT1 is Pb-Free, Halogen Free/BFR Free, and fully RoHS compliant, as stated in the Features section of the onsemi datasheet. The "G" suffix in alternate part numbers (e.g., BC848CWT1G) explicitly denotes the Pb-Free version, and the device meets EU Directive 2011/65/EU requirements without exemptions.
BC848CWT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- -
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
BC848CWT1 FAQ
1.How can I place an order for BC848CWT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC848CWT1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BC848CWT1 reliable?
The price and inventory of BC848CWT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC848CWT1 is usually 5 days.
3.What payment methods are accepted for BC848CWT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC848CWT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC848CWT1?
BC848CWT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC848CWT1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BC848CWT1?
For technical support, including BC848CWT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC848CWT1 requirements.
6.How does Aetrix verify that BC848CWT1 is sourced from the original manufacturer or authorized distributors?
All BC848CWT1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BC848CWT1 meets industry standards.
7.What is the process for return or replacement of BC848CWT1?
All BC848CWT1 units undergo pre-shipment inspection (PSI). If there is an issue with BC848CWT1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BC848CWT1 part is unused and in its original packaging.
Return procedure for BC848CWT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC848CWT1 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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